Ultra-wide-angle multispectral narrow-band absorber for infrared spectral reconstruction.

ABSTRACT: This paper presents the design of an ultra-wide-angle multispectral narrow-band absorber for reconstructing infrared spectra. The absorber offers several advantages, including polarization sensitivity, robustness against structural wear, wide azimuthal angle coverage, high narrow-band absorption, and adjustable working wavelength. To accomplish infrared spectrum reconstruction, an absorber is employed as a spectral sampling channel, eliminating the influence of slits or complex optical splitting elements in spectral imaging technology. Additionally, we propose using a truncation regularization algorithm based on the design matrix singular value ratio, namely IReg, which can enable high-precision spectral reconstruction under largely disturbed environments. The results demonstrate that, eve

SUBMITTER: Zheng Y 

PROVIDER: S-EPMC11363499 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature